Jurnal Perikanan dan Kelautan
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Mangrove Ecosystem Resource Management Based on Silvofishery (The Case of RPH Tegal - Tangkil, KPH Purwakarta, Blanakan Subang East Java)
Get PDFSilvofishery based mangrove ecosystem based resource management has been alreadywidely known and practiced, both at home and abroad. However, until now it’s difficultto find silvofishery application with correct and proper principles, in terms of bioengineering, ecological and institutional. The researched was conducted on March2012. The aims of this study were (1) assess the ecological status, (2) assess fishaquaculture bioengineering, (3) economic and financial analysis for the silvofisheryapplication, and (4) determine the pattern of silvofishery management in RPH TegalTangkil.Collected data were related to ecological, economic, social and institutionalaspect, which related to silvofishery management in RPH Tegal-Tangkil. The researchshowed that, mangroves contribute significantly to the daily shrimp by product. Waterquality conditions currently were still suitable for fish aquaculture activities. Althoughthere were discovered heavy metals content in this area, there for it is necessary toimprove water quality by develop reservoir system. In terms of bioengineering, fishermanwere still culture fish by traditionally technique and not done with correct and properprinciples. Economically silvofishery system was still able to develop for increasefishermans incomes. If silvofisheries were applied properly, it can increase fishermanincome up to 509.60%. However, silvofishery management was still deficient; It is seenfrom the difference between the ideal and reality. Institutional improvement minawanamanagement system at least focus on the improvement of the organization and rules ofthe game
Water Quality of Situ Rampones, Serang Regency
Get PDFSitu Rampones is upstream waters located in Sindang Mandi Village, Baros District, Serang Regency, Banten Province. This situation is used for public baths and household needs, such as drinking, cooking, washing up to irrigation of paddy fields in the surrounding sub-districts. The purpose of this research is to know Situ Rampones water quality. The study was conducted in March-May 2016 at six stationsi i.e inlet, bath room, bathhouse, outlet, 5 meter after outlet and 10 meter after outlet. Situ Rampones waters temperatures range from 25.6 to 28.23ºC, pH ranges from 7.75 to 8.28, DO ranges from 4.2 to 4.47 mg / L, NO2 ranges from 0 to 0.17, NO3 is 0, COD ranged from 4.43 to 5.07 mg / L and BOD ranged from 3.63 to 4.8 mg / L. Situ Rampones into the category of light contaminated waters
Zooplankton Abundance with NPK Fertilization
Get PDFZooplankton has advantages as natural feed for fish larvae. Therefore, necessary to attempts natural growth of zooplankton in aquaculture media, e.g. fertilization. This research aim to describe NPK Ferlitilizer influence to zooplankton abundance. Research conducted at January 2016, in Aquatic Resources Management Laboratory- Muhammadiyah University of Sukabumi and Water Quality Analysis in Center for Freshwater Aquaculture Laboratory. Research design is experimental research with four treatments and three replications. Treatment A with enhanced NPK fertilizer 10 ppm, Treatment B with NPK fertilizer 20 ppm, Treatment C with NPK fertilizer 30 ppm, Treatment D was control without fertilizer. Fertilizer treatment lead to water colour became green until dark green, officially different with control treatment. Zooplankton composition founded 78% from Eurotatoria, 19% from Branchiopoda, the left was from Malacostraca and Hexanauplia. Zooplankton abundance of control treatment significantly different with fertilizer treatment. The highest abundance found at the tenth day from treatment C with 18640 cell/L or almost 480% from initial
Effectiveness Long Time Immersion Sangkuriang Catfish Eggs in Flower Extract Kecombrang for Prevention Fungus Saprolegnia Sp
Get PDFFry availability is an important factor in the cultivation of Sangkuriang catfish. Continuity of fry availability is determined by the number of hatching eggs. The low of hatching rate mainly caused by the Saprolegnia sp. attack. One attempt to overcome the Saprolegnia sp. attack on fish eggs is by using Kecombrang flowers (Nicolia speciosa Horan). Anti-fungal compounds contained in Kecombrang flower was phenol, tannin, alkaloids, and flavonoids. The aim of this research is to find the immersion duration of Sangkuriang catfish eggs in the extract of Kecombrang flower most effectively to prevent the attack of Saprolegnia sp. and increase the egg hatching rate. The method in this study was Completely Randomized Design (RAL) experimental method with five treatments and three replications. The treatments was time of immerse the eggs of Sangkuriang catfish in Kecombrang flower extract at 60 ppm for 10, 15, 20, 25 minutes and without immersion as control. The investigate parameters in this study were Saprolegnia attack rate and hatching rate. Results of the experimental analyzed by F test, and if it was a significance difference then continue with Duncan Multiple Range Test at the 5% level. The results showed that the 20 minutes of immersion duration resulted in the lowest Saprolegnia attack rate about 13.50% and the highest egg hatching rate about 72.50%
Social Structure Study of Association The Flying Fish Fishermen in Takalar Regency (Case Study in Bontomarannu Village, South Galesong District
Get PDFThis study aims to determined (1) the form of social structure that occur in groups offlying fish fishermen and (2) the rights and duties between the punggawa and sawi insidethe social structure in flying fish fisher groups at Bontomarannu Village of SouthGalesong District, Takalar. The basic method of this research was descriptive methodwith qualitative approach, while the strategy was a case study. The research wasconducted in the Bontomarannu Villages District of South Galesong as one of the flyingfish fisher group who still use the traditional way. Determination of informants conducted snowball sampling where there were 35 informants were used in this study. The resultsshowed that the shape of the social structure of the punggawa sawi in a group of flyingfish fisher form of domination and legitimacy of the role played by the punggawa beingthe highest position in the social relations. The strength of the social structure betweenthe punggawa and sawi belong to the powerful force that created rights and duties ofeach role and status they have in the flying fish fisher groups. Rights and duties were notonly applicable in the employment relationship alone, but more deeply into the journey oflife both within the coastal communities in the Bontomarannu Village. Keywords : punggawa, sawi, social structure, Takala
The Feasibility of Boat Lift Net in the Archipelagic Fishing Port of Karangantu Banten Province
Get PDFThis research was conducted in the Archipelagic Fishing Port of Karangantu BantenProvince. It aimed to analyze the feasibility of a boat lift net based on ArchipelagicFishing Port of Karangantu. The research was conducted in November 2015 to January2016. The method used in this study is a survey method. Operation boat lift net inArchipelagic Fishing Port of Karangantu have done by two days fishing (two nights threedays). Based on the results of analysis feasibility (BCR, BEP, and PP) business boat liftnet worth the effort throughout the year (peak season, regular season, and off season).However, from the profits analysis, the revenue during the bad season is lower than thecost incurred. The results of a financial analysis on the operation of the boat lift net intwo seasons are BCR 1.38 (before fuel down) and 1.41 (after fuel down), BEP Rp.198,846,000 (before fuel down) and Rp. 188,090,000 (after fuel down), and PP 1.48 years or 18 months (before fuel down) and 1.38 years or 16 months (before fuel down),payback included in the category of fast because the value of PP < 3 years
Characterization of Bacillus and Lactobacillus Encapsulated in Various Carrier Materials for Vannamei Probiotics (Litopenaeus vannamei Boone, 1931)
Get PDFBacillus and Lactobacillus are bacteria that can be used in dry-stock probiotics in vannamei shrimp feed. In this study, it was performed to encapsulate Bacillus and Lactobacillus probiotic bacteria in several carrier materials, including rice flour, talc, and maltodextrin. The purpose of this study was to determine the type of carrier material that can provide the best probiotic character in the encapsulation process which will then be used in vannamei shrimp feed. The method used in this study is experimental method. The study was conducted with the preparation stage and the initial probiotic characterization test. Furthermore, Bacillus and Lactobacillus probiotic encapsulation process used spray drying method to produce powder inoculum, as well as advanced characterization test of bacteria that have been encapsulated. The parameters observed were the viability, resistance to temperature, pH and bile salts. Data were analyzed using ANAVA and Duncan Multiple Range Test. The results showed that all types of carrier materials used maintained the probiotic character of Bacillus and Lactobacillus after the encapsulation process. This can be seen from the character of probiotics that are in good category and deserve to be used as a probiotic agent after encapsulation process in the material of rice flour, maltodextrin, and talc
Water Quality Management of Lontar Village Coastal Waters, Banten
No full textThe coastal waters of Lontar Village is located in Tirtayasa District, Banten. The coastal waters of Lontar Village is also used for fishing activities that become the livelihood of the surrounding community. Communities around the coast of Lontar village dispose of household waste directly into the waters so that the waters become dirty. The existence of these activities can cause the condition of the waters to decrease even can lead to contamination. Decrease in water conditions will affect the living biota inside. Waters quality can be determined by measuring physical, chemical, biological and heavy metal parameters. Physical parameters include brightness, turbidity, and temperature. Chemical parameters are salinity, pH, dissolved oxygen, nitrate, phosphate, BOD, TSS. The biological parameter is total coliform. The parameters of heavy metals are lead and copper. The purpose of this study is to analyze the quality of coastal waters of Lontar Village based on physical, chemical, biological and heavy metal parameters. The results showed that most of the parameters of water quality (physics, chemistry, biology and heavy metals) are still in accordance with the value of water quality standards (Decree of the Minister of Environment No. 51 of 2004) only the value of lead metals exceeding the standard quality. It must be overcome so as not to disrupt the life of biota in the waters. Management that can be done is utilize aquatic biota that can absorb heavy metal content such as green shell (shell should not be consumed), reducing oil spilled from the activityof motor boats (giving box shelter under motor boat engines so that oil does not directly spill into the waters)
Differences of Fixed Lift Net Catch Result by Using CFL Lamps and Underwater LED in Banten Bay Water
Get PDFThe utilization of lamps as fishing aids related with the behavior of fish who like light. The lamp who use in this research are Compact Fluorescent Lamp (CFL) and Light Emitting Diode (LED). The purposes is know the illumination of light on the water medium and the composition of the catch of the tap on the CFL and underwater LED. The research was conducted from March to June 2017, located in the Banten Bay Water which has direction of position 05057'873" LS and 106009'486" BT and 06000'158" LS and 106012'011" BT. The experimental method fishing was used in this research. Measurements are made by comparing the illumination of the lamp light 65 watt CFL totaling 8 pieces and combined lamps (1 underwater LED and 6 CFL lamps) on the water medium of fixed lift net. The light illumination was analyzed with XY graph (Scatter) Microsoft excel 2007 and counter map Surfer v.11. The type and number of fish catch were reported as the data and the composition of the catch was analyzed by comparative descriptive. The average illumination of light on water medium produced 8 CFL and combined lamps respectively of 18.93% and 20.54% that include into the water. Composition of the catch using fishing tools with CFL lamps and a combination of positive phototaxis fish were 172.01 kg (17.42%) and 225.20 kg (22.80%) while the negative phototaxis were 205.59 kg (20.82%) and 384.60 kg (38.95%)
The Effect of Modified Aquaculture System on Water Quality in Cultivation of Catfish (Pangasius hypophthalmus
Get PDFThe aim of this research was to analysis the effect of different aquaculture systems on the water quality in cultivation of catfish (Pangasius hypophthalmus). This research was conducted at Fourth Building Hatchery Faculty of Fisheries and Marine Sciences of Padjadjaran University from June to August 2017. The research was using Completely Randomized Design (CRD) with three treatments and four replications. The Treatment A were cultivation in recirculation system, treatment B cultivation on biofloc system, and treatment C cultivation in conventional system (control). The parameters of this research are absolute growth rate and water quality include temperature, acidity (pH), dissolved oxygen (DO), nitrate, ammonia and phosphate. Data were analyzed using the Fingerprint Analysis Variety and followed Duncan's Multiple Range Test at the level of 95%. The results showed that the modification of the cultivation system had an effect on the growth rate of catfish. The results showed that the highest absolute growth was in treatment B that is 5.3 gram. The most effective cultivation system in producing water quality in cultivation of catfish is the recirculation system. This can be seen from the low ammonia concentration value of 0.00268 mg/L, phosphate 0.45 mg/L and nitrate 0.31 mg/L at the end of the study